Apparatus for mercerizing.



No. 7ll,623. Patented Oct. 2|, I902.

P. HAHN.

APPARATUS FOR MEBCERIZIN G.

(Application filed Mai. 6, 1902.)

5 Sheets-Sheet (No Model.)

no. 7Il,623. Patented Oct. 2:, i902. -P. HAHN.

APPARATUS FOR MERGERIZING.

(Application filedMar. 5, 1902'.)

5 Sheets-4kg! 2.

' (No nodal.)

m. 7||,s23. Patented Oct. 2|, I902.

P. HAHN.

APPARATUS FOR MEBGEBIZING.

(Application filed. Mar. 5, 1902.)

(No Model.) 5.Sheats- Shaet 4. I

n4: Nomus rnzns mmou'mq. WASHINGTON, n. c.

No. 7l|,623. Patented Oct. 2|, I902.

P. HAHN.

APPARATUS FOR msncemzma.

(Application filed Mar. 5, 1902.

5 Sheets-Sheet 5.

(No Model.)

GEM/W4,

m: cams PETERS co. PHOYO-LITHQ. wnsumowu, n. c.

UNITED STATES- PATENT OFFICE.

PAUL HAHN, OE NIEDERLAHNSTEIN, GERMANY.

APPARATUS FOR MERGERIZING.

SPECIFICATION forming part of Letters Patent No. 711,623, dated October 21, 1902.

' Application filed March 5, 1902. Serial No. 96,869. (No model.)

To aZZ whom it may concern:

Be it known that I, PAUL HAHN, a subject of the King of Prussia, Emperor of Germany, residing at Niederlahnstein, in the Province of Hesse-Nassau, German Empire, have invented certain new and useful Improvements in Apparatus for Mercerizing, of which the following is a full, clear, and exact'description.

With machines as ordinarily employed for treating textile fabrics with caustic lye of soda on Mercers system the fabric is saturated with the lye in unstretched condition and only stretched on completion. of the impregnation. The impregnation is, moreover,- efiected by means of sprinklers or jets or by a device arranged over an exhauster, the liqquid trickling down over the fabric. The whole process, in fact, proves defective, as the fabric is impregnated with the soda-lye for relatively far too short period. By means of the present invention these defects are overcome by the employment of squeezing or wringing rollers for the purpose of expressing the soda-lye from the fabric. A pair or several pairs in suscession of rollers are arranged adjustably, adapted to take any ordinary breadth of fabric, whereby the latter can be impregnated in stretched condition, the material being passed through a shallow receptacle containing the soda-lye. This method of treatment is exceedingly advantageous, the fabric receiving a remarkably uniform luster and not shrinking or drawing together either in the breadth or-length. Indeed, with this machine the width of the fabric can even be increased beyond the original dimension.

The invention is illustrated by the annexed drawings, in which Figures 1 and 1 combined represent a side elevation of my improved machine. Figs. 2 and 2 combined represent a plan view of my machine. Fig. 3 is a detailview showing in planqone arrangement of wringing-rollers. Fig. .4 is a side elevation of 'the same. Fig. 5 is a plan view, partially in section, showing another construction of wringing-roller. Fig. 6 is a vertical section of'such a roller.

a is the fabric to be treated, which'on being fed in is reduced to a suitable width and then led by means of pin-chains or the like into a long tray 0, filled with soda-lye, and there thoroughly impregnated, passing thence over the guide-roller e, between pairs of wringing-rollers, mounted on a kind of tambourframe f. These rollers can be constructed and arranged in various ways- The detail views, Figs. 3 and 4, show one form of roller.

length of the rollers m will be first squeezed or wrung out, whereupon the rear rollers will wring the lye from the other saturated places. By-this means since various series of rollers canbe arranged the soda-lye can be completely removed from the fabric. Adjustment of the rollers can conveniently be effected by means of lateral stop rings or collars or, still better, by cutting a screw-thread on the spindle, as shown-in Fig. 3, the bosses of the cylinders It m being provided with a corresponding female screw-thread. In the latter case means must be provided to prevent the rollers traveling on their spindles. The same purpose can be attained by means of the type of roller shown in Figs. 5 and 6,

in which case one pair of spindles y will suffice. The roller is here constructed of a number of narrow split disks fitting closely together. According to the width of fabric to be treated disks must be removed from or applied to the spindles a, as required, the two halves of each disk being secured together by bolts to admit of such removal or mounting.

After the fabric has passed through the wringing-rollers it passes over the tamboun frame f and down between the sprinkling device n, by means of which it is washed with hot and cold Water, whereby any lye which may still be in it is wholly washed out. The waste water flows into a second smaller tray 0, from which it can be run offand employed for any desired purpose.

The further treatment of'the fabric presents no novelty. The materialis in stretched condition again, well washed by jet-pipes or sprinklers r, and finally reaches the roller 8 ered in the usual manner. As the devices for stretching the fabric are directly connected by the rod 7 with the adjustment devices of the wringing rollers, drawing or shrinkage of the fabric is impossible. The latter is, on'the contrary, uniformly stretched, whereby it receives a remarkably fine and regular luster.

What I claim, and desire to secure by Letters Patent of the United States, is-

1. In a machine for treating textile fabrics with lye while in a stretched condition, the combination of a shallow lye vessel to receive the fabric passing through the machine, sectional wringing-rollers, laterally adjustable on their spindles, between which the fabric is fed, means for washing the fabric, and means for keeping same in stretched condition during the process, all substantially as specified.

2. In a machine for treating textile fabrics with lye while in a stretched condition, the combination of a shallow lye vessel to receive the fabric passing through the machine, sectional wringing-rollers, laterally adjustable on their spindles, between which the fabric is fed, means for washing the fabric, means for keeping same in stretched condition and means for connecting the fabric-stretching mechanism with the wringing-roller-adjust ment devices, all substantially as specified. In witness whereof I myself subscribe my signature in presence of two Witnesses;

PAUL HAHN.

Witnesses:

NIcoLAUs MEURER, CARL SCHMITT. 

